OpenAI pricing

GPT-6.1 Sol Pricing

GPT-6.1 Sol sits in the middle of OpenAI's current lineup: a fifth of GPT-6 Astra's price and twice GPT-6.1 Terra's.

Quick answer

GPT-6.1 Sol costs $2.00 per 1M input tokens and $10.00 per 1M output tokens. 1,000 typical requests cost about $8.00.

GPT-6.1 Sol API pricing

Price type	Now (USD per 1M tokens)
Input	$2.00
Cached input	$0.10
Output	$10.00
Batch input	$1.00
Batch output	$5.00

Short-context prices, for up to 272K input tokens.

What GPT-6.1 Sol costs in practice

Take a typical request with 2,000 input tokens and 400 output tokens. On GPT-6.1 Sol:

1,000 requests cost $8.00 at standard prices.
1 million requests a month cost $8,000.
If half of each prompt is read from cache, 1,000 requests cost $6.10.
On the Batch API, with the same caching, they cost $3.05.

Cost calculator

Requests per month

Input tokens per request

Output tokens per request

Share of input read from cache (%)

Monthly cost, standard–

With your cache share–

On the Batch API–

Per 1,000 requests–

With apicuts: at least 20% less, after our fee–

Uses GPT-6.1 Sol's standard prices checked October 30, 2026. Cache writes, thinking tokens and long-context tiers aren't included.

How to pay less for GPT-6.1 Sol

Cached input costs $0.10 instead of $2.00: keep system prompts, tools and documents at the start of the prompt so they cache.
Batch halves the price of work no one is waiting on.
Model choice: test cheaper GPT-6 models on the requests that don't need this one.

apicuts switches these on for you, routes each request to the lowest-cost route that passes your quality checks, and guarantees at least 20% lower cost after our fee. See pricing.

Compare GPT-6.1 Sol

See every model side by side in the LLM API pricing comparison, or read GPT-6.1 Sol vs Claude Opus 5.5.

Frequently asked questions

How much does GPT-6.1 Sol cost?

GPT-6.1 Sol costs $2.00 per 1M input tokens and $10.00 per 1M output tokens at standard prices, according to OpenAI's API pricing page (checked October 30, 2026).

How much do 1,000 GPT-6.1 Sol requests cost?

About $8.00, for requests of 2,000 input and 400 output tokens without caching.

Is there a cheaper way to use GPT-6.1 Sol?

Yes: caching repeated prompt prefixes, moving work that can wait to the Batch API at half price, capping output length, and sending simpler requests to a cheaper model.

Sources: OpenAI's API pricing page. Checked October 30, 2026.

Want us to find your 20%?

Book a free 15-minute API cost teardown. Bring last month's provider usage and we'll show you your biggest waste and the first fix we'd ship.

Get a Free 15-Minute API Cost Teardown